Abstract: The subject of this article is the existing system of inequality in housing sphere, which can cause serious social issues that can be prevented or mitigated with the help of the balanced and efficient housing policy. Examination of the problems of housing stratification become more relevant under the conditions of instable socioeconomic situation and decrease in financially solvent demand. The goal of this work consists in sociological analysis of the issues of current housing policy, which emerge based on social inequality in housing sphere, and originated by it housing stratification. The object of the analysis is housing stratification of metropolis of St. Petersburg. The research leans on the interdisciplinary scientific discourse that established on the basis of examination of housing stratification of the metropolis, as well as place and role of its residents in resolution of housing issues. The scientific novelty lies in substantiation of the thesis on cyclicity of the housing stratification. Particularly, the dynamics of stratification in St. Petersburg is demonstrated. The author analyzes the results and problems of implementation of the government project of ensuring the affordable and comfortable housing to the Russian citizens, as well as compares the approaches of the reals estate developers towards further advancement of housing policy.